JPS60232320A - Diverter - Google Patents

Abstract

PURPOSE:To reduce the impingement between a releasing member and an article in a diverter for laterally discharging articles carried on a conveyor, by providing the releasing member to one end of a cross-bar spanning widthwise of the conveyor, and by swinging the cross-bar about the other end thereof as a pivot center point. CONSTITUTION:When the leading edge of an article comes to a discharge point, a drive device 65 is driven in association with an article detection signal from a detector which is not shown, to rotate an article releasing member 61 laid at a nonoperative position together with a cross-bar 64 in the transfer direction to a position indicated by the one dot chain line, and therefore, the article is swept out onto a chute 7. The motion of this releasing member 61 has a velocity component in the transfer direction of the article, but has no velocity component in the direction opposite to the transfer direction. Accordingly, the angle between the article discharging direction vector and the transfer direction vector is made large, but the resultant vector thereof is made small. Accordingly, when the releasing member 61 impinges upon the article, the shock may be reduced.

Description

Detailed Description of the Invention [Technical Field of the Invention] The present invention relates to a diverter that discharges articles sequentially conveyed on a conveyor in a certain direction to the side of the conveyor, An article discharging device that can reciprocate between a non-operating position in which the article is inserted and an operating position in which it extends onto the conveyor and discharges the article to the other side of the conveyor, especially when the article discharging device collides with the article. It is concerned with reducing impact.

[Conventional technology]

Conventional diverters for this rod include those shown in FIGS. 1 and 2. In FIG. 1, (1) is a belt conveyor that sequentially conveys articles (not shown) in the direction of arrow (2). (3) is a diverter installed at a required point after returning to the conveyor (1).
), a vertical shaft (32) fixedly supporting one end thereof, and a drive device (34) for interlocking this vertical shaft (32) with reciprocating rotation as shown by an arrow (33).
1) is a non-discharge position (
A reciprocating motion is made in the direction of the arrow (35) between the position indicated by the solid line) and the operating position h which extends onto the conveyor (1) and discharges the article onto the other side of the conveyor (1) (position indicated by the dashed-dotted line). be swayed. (36) is a bearing for the vertical shaft (32).

Next, in Figure 2, (4) is a diverter, and (41)
(42) is a bearing, (43) is one end of (
II (44) is rotatably supported by the bearing (42)
b4 is an arm pivotally connected to the midpoint of the article discharging device (41), and (45) is a crank mechanism coupled to the rear end of the article discharging device (41), which moves from the drive source (46) in the direction of the arrow (47). It is rotationally driven in the direction. Thus, the article release device (
41) is a crank mechanism (
45) and the rotation of the arm (43), the article is reciprocated between the non-operating position indicated by the solid line and the operating position indicated by the dashed-dotted line, thereby ejecting the article.

However, in these conventional devices, since the article ejection tools (31) and (41) operate to pick up the article, the impact when they collide with the article is large. - This will be explained with reference to Figures 3 (a) and (b). In FIG. 3, it is assumed that (5) is an article being conveyed in the direction of arrow (2), and article discharge tools (31) and (41) are articles (
5) A vector diagram showing the impact at the moment of collision.
(a) shows the case where the article ejector hits the side of the article at an angle of α=2a, and (a) shows the case where it hits the side of the article at an angle of α=8°.

Vl is the velocity vector in the conveyance direction of the article (5) in the conveyance direction <2), assuming that the article ejector is moving at the same speed in the opposite direction to the article conveyance direction with respect to the stationary article; ! is the emission direction illuminance vector (perpendicular to the surface of the article discharger) when the article discharger hits the article, ■ is v
This is a composite vector of l and vl. Incidentally, the impact that an article receives when it collides with the article ejector is determined by the component Vp of the composite vector V in the direction connecting the collision point P and the center of gravity G of the article. Therefore, efforts have been made to reduce the resultant vector V in the past, but the required classification of both vl and v is determined by external specification conditions such as capacity, and it is possible to reduce it only from the perspective of impact force. isn't it. Therefore, attempts have been made in the past to make the angle .theta. formed by the vectors V1+3 as large as possible to reduce the resultant vector V. For example, when the diverter shown in FIG. 2 is started, the article discharging device (41) moves in a direction substantially parallel to the article conveyance direction, and thereafter, the article discharging device (31) of FIG. It is devised to eject the object with a similar movement, and by conveying the object to one side toward the diverter, even the diverter of the type shown in Figure 1 can avoid colliding with the object immediately after starting. A known method is to make the angle θ as large as possible by reducing the angle a, as shown in FIG. 3(B). However, in the conventional diverter as shown in FIGS. 1 and 2, the angle θ is at most 90), and there is a limit to attempts to reduce the shock by reducing the resultant vector V.

[Summary of the invention]

The present invention has been made to eliminate such drawbacks of the conventional ones, and by making the article discharge direction velocity vector v1 have a component in the article conveyance direction, the article conveyance direction velocity vector V and the article discharge direction velocity The angle θ formed by the vector v1 can be made larger than the conventional one,
Therefore, it is an object of the present invention to provide a diverter that can significantly reduce the impact that an article receives in the event of a collision compared to the prior art.

[Embodiments of the invention]

An embodiment of the present invention will be described below with reference to FIG. (
6) is a diverter according to the present invention, (61) is a famous article discharging device located on the - side of the belt conveyor (1), and (6) is a diverter according to the present invention;
62) holds the belt conveyor (1) and releases the article (
a vertical shaft rotatably supported in a bearing (63) on the opposite side of 61), (64) having one end fixed to the vertical shaft (62);
It is a horizontal frame that extends across the top of the conveyor (1) in the non-operating position shown by a solid line, and the article discharge device (61) extends from the other end of the horizontal frame (64) in the article conveying direction (2) in the non-operating position. The article discharging tool (61) is attached to the other end of the horizontal frame (64) so as to extend substantially parallel to the negative side of the conveyor (1) toward the conveyor (1).
) is integrally formed. (65) is a drive device that reciprocates and rotates the vertical shaft (62) in the direction of arrow (67) via a crank mechanism (66), and is composed of an electric motor with a speed reducer. Thus, when the drive device (65) is rotated, the article ejector (61) is reciprocated in the direction of the arrow (68) between the operating position shown by the solid line and the operating position shown by the dashed line. Since the articles pass through the horizontal frame (64), the middle plate of the articles to be conveyed by the conveyor (1) must also be provided at a higher position than the higher one.
) preferably extends close to the surface of the conveyor (1) so that even the lowest articles can be discharged.

Next, the operation of the device shown in FIG. 4 will be explained with reference to FIG. 5 as well. In FIG. 5, the diverter (6) is arranged horizontally in the opposite direction to that in FIG. 4 with respect to the conveyor (1), but the operation is the same.

A signal indicating that the leading edge (51) (Fig. 5) of the article (5) to be ejected has now reached the ejection point (a) - (&) is activated by a known detection device (not shown). When entering the device (65), the disc (661) of the crank mechanism (66) will point to the arrow (
662), and this rotation is caused by the crank (66
3) and the lever (664), the reciprocating rotational movement is transmitted to the horizontal frame (64) and therefore the article ejector (61) through the vertical shaft (62), and the article ejector (61) The vertical axis (
62) and return to the original non-operating position after discharging the article (5) into the discharging chute (7). Disc (66
In order to stop 1) in one rotation, a conventionally known combination such as a proximity switch and a brake can be used as is. Fifth
The figure illustrates such an article ejecting movement of the article ejecting device (61) with respect to the positions of the pressing surface (611) and the article (5) at every 15° rotation angle of the pressing surface (611). As is clear from this figure, the ejection velocity vector of the article ejector (61) has a component in the article conveyance direction, but does not have a component in the opposite direction. This is shown in a vector diagram in FIG. Figure 6 (A) is the same as Figure 3 (A), and when the article ejector (61) collides with the article (5) at α = 25°, Figure 6 (O) is similar to Figure 3 (B). same as,(
The case of collision at v, -8° is shown, and V, + V
, are all the same as in FIG. In either case, the article discharge direction velocity vector V of the article discharge tool (61) is such that the article discharge tool (61) is connected to the conveyor (1).
Since it is rotated in the article conveyance direction (2) around the vertical axis (62) located on the opposite side of the article, the article conveyance direction (
2) does not have a velocity component in the opposite direction. This means that the velocity vector v1 in the conveying direction and the elegance vector v1 in the article conveying direction
This means that the angle .theta. formed with the .theta. becomes larger, and the resultant vector V of these becomes smaller than that of the conventional one shown in FIG. 3, and the surface direction component Vp also becomes smaller. Therefore, the article release device (
61), the impact received by the article when it collides with the article is also smaller than before. Furthermore, the conventional diverter does not have the function of guiding the article to the discharge chute, and therefore it is difficult to expect the article to change direction 90' and enter the discharge chute, but in the present invention, the article is guided as shown in FIG. Since the discharge device (61) actively guides the article gradually toward the discharge chute (7) according to a natural trajectory, the article is discharged into the discharge chute at a substantially constant angle.

Another embodiment of the invention is shown in FIG.

In the figure, (68) is a cylinder device such as a hydraulic cylinder, one end of which is pivotally connected to a horizontal frame (64), and the other end is pivotally connected to a fixed support (69). Therefore, in this embodiment, as a drive device for rotating the horizontal frame between the non-operating position and the operating position, the electric motor with reducer of the embodiment shown in FIG.
65), a cylinder device (68) is used. According to this, complicated mechanical elements such as a crank mechanism can be omitted.

A further embodiment of the invention is shown in FIG. In this embodiment, in the non-operating position, the horizontal frame (64) extends obliquely forward from the vertical axis (62) when viewed in the article transport direction (2), and the article ejector (61) is directed in said direction (2). It is coupled to the end of the horizontal frame (64) at a position forward of the rear end when viewed. By doing this, the article release tool (61
) becomes smaller in front of the connection point with the horizontal frame (64), and when the article release device (61) collides with the article, the moment applied to the connection point becomes smaller, and there is a risk of cracks occurring in this part. is low.

An embodiment of the second invention of the present application is shown in FIG.

In the figure, (641) is a hub provided at one end of the horizontal frame (64), and is fitted onto the vertical shaft (62) so as to be able to slide vertically thereon. C642), (643) are stopper rings provided at both ends of the hub (641),
(621).

(622) is a key fixed to the vertical shaft (62), which includes a hub (641), a stopper ring (642), (64)
3') is formed with a recessed key and a J-shaped recessed groove, and the engagement of the keys (621) and (622) with the key groove allows the horizontal frame (64) and vertical shaft (62) to be connected to each other. This prevents rotation relative to the (644) and (645) are each tightened to the key (621) by set screws to hold the hub (641) at a desired height position.

Although not visible in the drawing, such a set screw is also provided for the key (622). (646) is a horizontal frame (64)
As shown in the figure, vertical slots (647) and (648) are formed in the support plate for the article discharging device provided at the other end. (647) and (648) are bolts that are screwed into bolt holes (not shown) of the article ejector (61) to hold the article ejector (61) in a desired position.

In all of the embodiments described above, the height of the horizontal frame (64) cannot be adjusted, and the diverter has to be designed according to the user's requirements.
In the embodiment where h < r, the height of the horizontal frame (64) and the height of the article ejector (61) can be adjusted, so there is no need to design and manufacture them individually. It's versatile. Further, the user can also keep the height to a minimum depending on the usage situation, and the moment applied to the bearing (63) of the vertical shaft (62) can be made as small as possible.

In addition, in the above embodiment, the conveyor was explained as a belt conveyor, but a slat conveyor,
Other types such as air cushion conveyors may also be used. Further, as a driving device for the diverter, a hydraulic or pneumatic rotary actuator may be used instead of an electric motor with a reduction gear or a cylinder device.

Furthermore, applying the embodiments shown in FIGS. 7 and 8 to the embodiment shown in FIG. 9 would be of no use.

〔Effect of the invention〕

As described above, according to the present invention, the article discharging device and the vertical shaft serving as its rotation center are arranged opposite to each other with the conveyor in between, and the article discharging device is rotated forward in the article conveying direction from the non-operating position to the operating position. As a result, the velocity vector in the article ejecting direction has a component in the article conveyance direction, resulting in the effect that the impact received when the article collides with the article ejector is greatly reduced. In addition, by making the height positions of the horizontal frame and article release device adjustable, versatility is achieved.
There is no need to design and manufacture each diverter individually, and the user can use the diverter at an optimal height.

[Brief explanation of the drawing]

1 and 2 are perspective views showing a conventional diverter, FIG. 3 is a diagram for explaining the problems of the conventional diverter, FIG. 4 is a perspective view of an embodiment of the present invention, and FIG. The figure shows the operation of the embodiment shown in Fig. 4, and Fig. 6 is a diagram similar to Fig. 3 to explain that the embodiment shown in Fig. 4 solves the problems of the conventional one. , FIG. 7 is a perspective view showing another embodiment of the present invention, FIG. 8 is a plan view showing a further embodiment of the invention, and FIG. 9 is a partially cutaway view of an embodiment of the second invention. It is a perspective view, and the same reference numerals in the figure indicate the same or corresponding parts. In the figure, (1) is a belt conveyor, (2)
is the article conveyance direction, (5) is the article, (6) is the diverter,
(61) is an article discharge device, (62) is a vertical axis, (64) is a horizontal machine (65), (68) is a drive device, (621). (622), (641) to (645) are horizontal frame height lR
wf1 device, (612), (613), (646) ~ (
648) is a height adjustment device for the article ejector. Patent issued by Sandvik ME-J! Figure 1 Figure 2 Figure 3 Figure 6 (, jJ2 (b) Figure 7 Figure 8

Claims (7)

[Claims] (1) A diverter that discharges articles sequentially conveyed in a certain direction on a conveyor to the side of the conveyor, the diverter extending onto the conveyor from a non-operating position where it is retracted to one side of the conveyor. a vertical shaft provided on the other side of the conveyor; A horizontal frame extending across the top of the conveyor is provided at the horizontal frame, and the article discharging device is directed at the other end of the horizontal frame from the other end of the horizontal frame toward the article conveyance direction of the conveyor at the non-discharging position. The horizontal frame is mounted so as to extend substantially parallel to the negative side of the conveyor, and the horizontal frame is mounted in the article conveying direction from the non-operating position to the operating position, and in the opposite direction to the article conveying direction from the operating position to the non-operating position. A diverter comprising a drive device that rotates the diverter reciprocally about the vertical axis in the direction. (2) The diverter according to claim 1, wherein the one end of the horizontal frame is fixed to the vertical shaft, and the drive device drives the vertical shaft to reciprocate and rotate. (3) The diverter according to claim 1, wherein the drive device is a cylinder device that is coupled to the horizontal frame and rotates it back and forth about the vertical axis. (4) The diverter according to claim 1, wherein the article discharge device is integrally provided on the horizontal frame. (5) In the non-operating position, the horizontal frame extends diagonally forward from the vertical axis when viewed in the article conveyance direction, and the horizontal frame extends diagonally forward from the rear end when looking at the article discharging device in the direction. A diverter according to claim 1 coupled to the other end. (6) A diverter for discharging articles sequentially conveyed in a certain direction on a conveyor to the side of the conveyor, the diverter extending onto the conveyor from a non-operating position where it is retracted to one side of the conveyor. a vertical shaft provided on the other side of the conveyor, one end of which is attached to the vertical shaft, and the non-operating position; A horizontal frame extending across the upper part of the conveyor is provided, one end of the article discharging device is attached to the other end of the horizontal frame, and one end of the article discharging device is connected to the article conveying direction of the conveyor from the other end of the horizontal frame at the non-discharging position. The horizontal frame is mounted so as to extend substantially parallel to the negative side of the conveyor, and the horizontal frame is mounted in the article conveying direction from the non-operating position to the operating position, and in the opposite direction to the article conveying direction from the operating position to the non-operating position. a drive device for rotating the vertical M-axis in a direction, a height adjustment device for adjusting the mounting height of the horizontal frame on the vertical axis, and a height adjustment device for adjusting the height of the article discharging tool on the horizontal frame. A diverter characterized in that an installation device is provided to be attached to the diverter. (7) Claim 6, wherein one end of the horizontal frame is slidable on the vertical axis, and the height adjustment device is a set screw that fixes one end of the horizontal frame to the vertical axis. Diverter as described in section.